Heart Health Guide

Your heart pumps approximately 2,000 gallons of blood every day. Understanding how to keep it healthy is one of the most important things you can do for your longevity.

The BMI–Heart Connection

Research shows a clear link between elevated BMI and increased cardiovascular risk. For every 5-unit increase in BMI above 25, coronary heart disease risk increases by approximately 29%. Maintaining a healthy BMI is one of the most effective ways to protect your heart.

Key Risk Factors

High blood pressure — the silent killer, often has no symptoms
High cholesterol — excess LDL cholesterol builds up in arteries
Diabetes — doubles the risk of heart disease
Smoking — damages blood vessels and reduces oxygen in blood
Physical inactivity — weakens the heart muscle over time
Obesity — forces the heart to work harder

Exercise

Aim for 150 minutes of moderate aerobic activity per week.

Diet

Follow a Mediterranean-style diet rich in fruits, vegetables, and healthy fats.

Sleep

Get 7-9 hours of quality sleep to allow your heart to rest and repair.

Monitor

Check your BMI, blood pressure, and cholesterol regularly.

Prevention Strategies That Work

Cardiovascular disease remains the leading cause of death worldwide, but up to 80 percent of premature heart disease is preventable through lifestyle modification. The following evidence-based strategies can significantly reduce your risk.

Maintain a Healthy Weight

Excess body weight — particularly visceral fat stored around the abdominal organs — forces the heart to work harder with every beat. A healthy BMI between 18.5 and 24.9 is associated with the lowest cardiovascular risk. If your BMI is above 25, even a modest reduction of 5–10 percent of your body weight can lower blood pressure by 5–10 mmHg, reduce LDL cholesterol, and improve insulin sensitivity. Use our BMI Chart to see the healthy weight range for your height.

Monitor Body Composition

BMI alone does not tell the full story. Two people with the same BMI can have very different levels of body fat and cardiovascular risk. Measuring your body fat percentage and waist circumference provides additional insight. A waist circumference above 94 cm for men or 80 cm for women is an independent risk factor for heart disease, even when BMI is normal.

Exercise Recommendations for Heart Health

Regular physical activity strengthens the heart muscle, improves blood flow, lowers blood pressure, and helps maintain a healthy weight. The American Heart Association and the World Health Organization both recommend:

Moderate-intensity aerobic activity — at least 150 minutes per week. Examples: brisk walking, cycling, swimming, dancing. You should be able to talk but not sing during the activity.
Vigorous-intensity aerobic activity — at least 75 minutes per week as an alternative. Examples: running, aerobics classes, competitive sports. You should find it difficult to say more than a few words without pausing for breath.
Strength training — at least two sessions per week targeting all major muscle groups. Resistance training improves metabolic health, supports weight management, and reduces resting blood pressure.
Reduce sedentary time — break up prolonged sitting with short movement breaks every 30 to 60 minutes. Even light activity like standing or walking to get water provides cardiovascular benefit.

If you are new to exercise, start slowly and build up gradually. Even 10-minute bouts of activity count toward your weekly total. Consistency matters more than intensity — a daily 20-minute walk is more beneficial than a single intense weekend workout.

Heart-Healthy Diet Guidelines

What you eat directly affects your heart health. The Mediterranean diet, DASH diet, and other heart-healthy eating patterns share several key principles:

Eat plenty of fruits and vegetables — aim for at least five servings daily. They provide fibre, potassium, antioxidants, and phytonutrients that protect blood vessels.
Choose whole grains over refined grains — oats, brown rice, quinoa, and wholemeal bread provide sustained energy and help lower cholesterol.
Include healthy fats — olive oil, avocados, nuts, seeds, and oily fish (salmon, mackerel, sardines) are rich in omega-3 fatty acids that reduce inflammation and triglycerides.
Limit sodium intake — aim for less than 2,300 mg per day (about one teaspoon of salt). Excess sodium raises blood pressure, a major risk factor for stroke and heart attack.
Reduce added sugars — high sugar intake contributes to weight gain, insulin resistance, and elevated triglycerides. Check food labels and limit sugary drinks, sweets, and processed snacks.
Limit saturated and trans fats — replace butter and processed meats with healthier alternatives. Trans fats, found in some margarines and packaged foods, are particularly harmful and should be avoided entirely.

Use our Calorie Calculator to determine your daily energy needs, then distribute those calories across nutrient-dense whole foods for optimal heart health.

Stress Management and Sleep

Chronic stress triggers the release of cortisol and adrenaline, which raise blood pressure and heart rate over time. Effective stress management techniques include regular exercise, mindfulness meditation, deep breathing exercises, spending time in nature, and maintaining strong social connections. Find what works for you and practise it consistently.

Sleep is equally critical. Adults who consistently get fewer than six hours of sleep per night have a significantly higher risk of heart disease, high blood pressure, and stroke. During deep sleep, your heart rate and blood pressure drop, giving your cardiovascular system essential recovery time. Aim for seven to nine hours of quality sleep per night by maintaining a consistent sleep schedule, keeping your bedroom dark and cool, and avoiding screens for at least 30 minutes before bed.

Know Your Numbers

Regular health monitoring allows you to catch potential problems early, when they are most treatable. Key numbers to track include:

Blood pressure — normal is below 120/80 mmHg. Have it checked at least once a year.
Cholesterol — total cholesterol below 200 mg/dL, LDL below 100 mg/dL, HDL above 40 mg/dL for men or 50 mg/dL for women.
Blood sugar — fasting glucose below 100 mg/dL. Elevated levels may indicate prediabetes.
BMI and body fat — use our free calculators to track these at home between doctor visits.
Resting heart rate — a normal resting heart rate for adults is 60–100 beats per minute. Lower values generally indicate better cardiovascular fitness.

The Good News

Even modest weight loss of 5–10% of body weight can significantly improve cardiovascular risk factors. That means a 90 kg person only needs to lose 4.5–9 kg to see meaningful health improvements. Heart disease is largely preventable, and it is never too late to start making positive changes. Every healthy meal, every walk around the block, every good night's sleep contributes to a stronger, healthier heart.